<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
  <p>打包图片</p>
<div id="box">
  box
</div>
  <div id="box2">
      less
  </div>
  <div id="box3">
      sass
  </div>
 <div class="nav">导航</div>
</body>
</html>